http://archive.newsleader.com/VideoNetwork/2363642352001/Potential-Gray-Hair-Cure-Could-Be-a-Bad-Thinghttp://cdn.newslook.com/e4/e454d66756b7644e9974562a88b60cf2/mp4_low/e454d66756b7644e9974562a88b60cf2-mp4_low.mp4http://archive.newsleader.com/VideoNetwork/2363642352001/Potential-Gray-Hair-Cure-Could-Be-a-Bad-Thinghttp://cdn.newslook.com/e4/e454d66756b7644e9974562a88b60cf2/images/frame_0029.jpgPotential Gray Hair Cure Could Be a Bad ThingResearchers in the UK have found a potential cure for gray hair. But is that a good thing? Rena Karefa-Johnson wonders whether Hollywood's hottest would be better with or without their gray locks.Anderson Cooperhelen mirrenSeriously?newslookHealthGeorge ClooneyUnited Kingdomentertainmentjohn travolta01:24